Demountable rim.



WILLIAM )utlisation illeil'Deeemher 21, 1912, B eal No. 737,964.4

' To all uiwm it may concern: 4

" Be it known that I, WILLIAM N. Boom,

.i lacitizen of the United States, and resident of Detroit, in the county of Wayne and State of -Michi an, ,have invented certain new and useful mprovements in Demountable Rims, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to -which itappertai'ns to malte and use The objects ,of the invention' are to provide a device for securely attaching the deioI mountable rim of a pneumatic tire to the felly rim and to provide a clamping means for the rim including a. nut'so mounted as to remain stationary when loosened .in what- 'ever position it may beput, and said clampL ingineans ralso arranged tov provide three `points .for engagement' and so adapt itself ,to all inequalities of the engaging surfaces.

The invention also includes means for-'detachably securing a split tire holding ring I for a clench'er or other tire to the rim. 2li4 The invention is hereinafter further described, the various-features illustrated in the accompanying. drewingsand specifically pointed out in lthe claims.

In the iuicoi'npaiiying1 drawinvs Figure l is a transverse section t rough the demountf able and folly 'rim of n n automobile wheel showing the clamping device for the felly rim ;JFig. A the Vclamping lete;. Fig; 8 is 'ii-perspective view ofa sp it' rin employed to eirrert a "pressure between t e nut and cliiinping plate; Fig. 4 is a transverse sectionl ofthe ede of the automobile rim showin l the w ging clasp therefor; Fig. 5 is aV si' e elevation of a vportion of the. complete rim' ls'hoivix'ig the'device for securing-the rims to esther. and also the @las for securing the detachable-ring to' the ldemountable ring; Fig. "6 is an enlarged circumferential section showing` the' engagement of theolasp with the extremities of the detachable. ring;

Fig. 7 gis aV perspective view'O the claspV detached from the rim. Fig. 8 Iis aplan view of the inner face of the demountable rim5 showing the clasp, or 'pivoted plate which-'holds the split ring in place.

In these views l is the automobile rim, 2 the folly Vrim having a downwardly turned fiange upon its outer edge,

En sr'rss PATENT oFinoE.

Speoication or Letter Patent.

Y'ring and the ring is 2 is a'vieW of the inner surface of' 3 isa wedge.

N. scorn, or nsrorr, mexican, Ass'mNon `'ro Kansai' wniinn comm,

me., orpn'rnor, MICHIGAN, a-:conronArIoN F NEW Yoan.

Patented oet. 1,1918.

Renewed August 16,1916. Serial No. 115,347'.

sha ed.ring adapted tol engage an 'annular 55 w ge shaped projection 4 on the automobile rim and an inclined surface 5'on the lfelly rim, corrcspondin ly inclined surfaces 6 yand 7 onthe opposite edge of the automobile and felly rims engaged as shown'inFig. I when the plates are drawn together.

The Vinclined surfaces 4 and 5 are shown A at one side of the rim andthe surfaces 6 and 7 at the other side.

The outer rim is sleeved over the inner rim, the wedge shaped ring is then put inplace and clam ing plates 8 'through which pass holdin iiolts 9 secure these parts ti htly toget er.

he surface of the clam ing plate 8 which engages the wed e sha e vringis curvedat ,8. to correspon to t e curvature 'of the also outwardly' curved .onits outerlsnrface at 5 so as to give'a r'oll`- 'ing 4engagement to the clamping surface, '15. when the clamp rocks on the bolt which will'. adjust itself to slight variations in positions of the parte. f1

A second' point of engagement is shown at 10 where the clamp rests against the 8'0y downwardlyy turned outer face 2 of the felly riin. The nut 11 upon the bolt 9 is provided -with theflange 19. and thel mit is curved V0111 A its inner face at .13 to engage a correspond-s. ingly shaped recessie of-tlie clamping'lplate thus permitting the rolling engagement ofs i the clamp upon the wedgeshaped ring men u -tioned and givin :free rocking movement ofy the clamp -upon the nut.

The clampingplate is deeply .recessed at and in this recess the flanged end of the nut is inserted and the edges of the recess. are turned over at 16 to prevent the removal of the nut.A ,L

A curved washer 17 `Within the recess serves as of friction'bearingforthe nut and.l a split spring rin 18 inserted between the flange and the was er serves to permit 'rock-'i g ing and lon clamp upon tA the nut at placed so that it will not turn when. the 1 f parts have been loosened and also will retain l the clamp in its position, so that itwill not4 g" fall down and. will always be in position toy be put into en agement with the ring ready to-be again tig tened. This is agreat convenience in the use of an automobile and#l e bolt, and will also retain' restoringv the clumps rto plncc before they cnn be tightened up.

This c end also n clasp 20 is shown. pivoted to the ydemountable rim at 21. in Fig. 8, which will secure the extremitiesl ofthe s littire' retainingV ring asshown at 22 w ien broughtl to ether into their places.

n Figs. 4,5, 6, und 7' this device isshown. Here 'the split ring 22 is shown provided with-a tongue inserted in thegroove 24 in the demountable rim. ,s'hown iii this`rim .one on each side offen integral bnr 26.1--Each extremi-tyv of the split Openings 25 are ring 22 is provided with a pro ecting member 27 adapted to -pa-ss throug one of the o enings 25 .and each projecting member 2g is cutaway et' 28 to form ashoulder por` tion P, and a neck portion P.

The clasp or plate 20 is provided with the wedge shaped projection 30 adapted to pass underneathl the member 26 and to vpress aigiiinsty the s hoi'ilders28 und -thuswhen the su c asp is closed to force inward the projections 2"? to close'tightly the extremities of the split ring- 22. To prevent the escape of the members 27 from their locked position, a. recess 32 in the inner face ofthe clasp plete 20 engages :t projection 31 upon the rim 1, and resilient engagement is made by means ofthe spring action of vthe clasp 20.

novferhanging edge 33 protects the parts from injury. -An opening 34 is formed in one edge of the clasp 2O into which n. tool canbe inserted to release the clasp.4

This device is important, since it is quickly operateieicient :ind simple in' construction. and by its means the tire holding ringr cnn be rapidly Vattached und detnched from the demountable rim.

As clearly shown in Fig. 1, the bearing 10 on thev clamping plate 8 forms n ulcrinn around which said plate swings as pressure is appli-ed tov it by tightening the nut v11. This swinging or angular movement is vpermitted without throwing nn)1 lateral stress vvupon the bolt 9, bv reason of the loose lfit between tl1e1nutnnd the plate end the curve-d or spherical bearing i3 on the inner fn'ce o" the nut. Thus n universally pivoter] swivel 'joint'4 is formed, resolving 'the stresses into a longitudinal' tension upon' the bolt und converting ther/lampv into :Liever ofv the third Hoving described the invention vifhnt I claim as'new und"d,esire`to secure b v Letters Patentis-f l.A Incombiniition with :i folly. nud 'follyl rim,- andf'deinountnhle riinlsz'iid rims pro'.-

vided' with.correspondingly inclined surfnccs onthenI meeting fares, mid also .with

oppositely. inclined faces, :t wedge .shaped ring adapted -o engnge snid-pppositely in?v clinod films, seid ring having ncnwod pronlnping device is shown in Figj immutable rim uponl e folly bn.nd,'si\i 'surfaces of clamps and rings permitting. o 70 Q freeplay on each other, bolts assing through each ela-in )ing plate and 4fel y ring, and a nut for enel bolt, said nut rovided with e flange'and having s, rounc ed 'inner fnc'e, 'each clamping plate havinguLcorre- 75 spondingly'curved recess, the outer walls of said recesscurved over the edge of said fiunge to retain thesame andamvasher and'i 2. he combination withthe-'felini1 of a 80 wheel' Vhaving a band, it rim thereongnd a. wedge rin-g :for holding said rim in place', of clamping means comprisin u bolt secured' to said folly, a' nut -ciirried y said bolt, a chimp plate mounted for roekingmovement on 'i1-nd carried by said nut and non-detachfr ably held thereon, and :i resilient member for normally holding 'theseat in the clamp plate against the working t'nce of the nut.

3. The combina-tion with the felly of a 9o wheel having a bund, n rim thereon, a Wedge ring holding said rim in plice und having e, crowned outer face, of 'a clamp plete having a concave seat engaging seid crowned face,

a bolt passing through said felly-, and the es plate, and n. nutloosely carried'by' sid plateond non-detachnbly-held therein.

4. Thecombinatioirwith a' felly band pro# vided with .an inwardly ex'tendin fienge Aat havinga -concave inner face and VinvverdhY turned outer edges, a bolt passing' through each clamp and folly bend, a nut uponeach bolt and hn-'vingjaconcave rein' surface, each '1'15 nut having aneitended'annular .'lange, aA frictionV washer for seid nut nclos'ed bythe',

i-.u'ee'n said .washer und-the flange-uponsaid :I nut wherebysaid clamp is 4 turning`u'lien'iielczised from said ring.

I nnelnmping device for seurinade' I bund, hevngnn inwardly turnedvv lang n.1 holt passing through solid downwar l52 '125 turned ungern,V clump' having a heel en'gag-;-

hnup having u recess iii-its outer f uc', the;`

enter edges of; which incline inwerdlv, va

retained from' -12'0` spring locuturl releve-en fsudfwasllcr and.

cess, a, 'friction v 1511er 'in Said recess, and a.

-f devicuffm'securing e clelunnlion 'with smurngg boltI passing lal'ex'-V ally through (.lm. Tellyz 'of' u clmnpng-plal'e sleeved upon said bolt. lmvinfra. fulcrun'l bearing on one, sldetherwf unil a clamping bearing upon tlm oppositesile, and u nntuniversally pvotully sweled fo sind clumping-plnte and engaging the threaded portion of seid bolt.

8. In a, clamping device for securing e demountable rim upon n felly band, the combination with u h'olt projecting laterally from the folly, of a. clamping-p :ite having il. fulcrum Vbearing against. sux'd felly on the inner side of said Ll'lqlt 'unil e elem-ping bearmg on'tlie outer s1de thereof, and n .nui universally pivobsllly swlvelcd lo said elumpingplate and engaging the threaded pertpn of smid bolli.

9. In a clln'npmg device fm' ssl mg u, fulcrlnnlmlwing at llhe inner side of Huid bolt and n clmnping bearm' 11110.11 zlie nuten' side thereof, the outer Line ol seid clump bein! recessed, n flanged mit; universally pivots. ly' swiw-:led ln snLLrece-ss, and a rctnining flange on said elarnpfm permanently securing seid nut, )ermitting e lim iterl, universal rmvement t ereof.

In lestlmmviy whereof, IA lmreunto set; my hemd this 2nd. du); of N ovemberlfll,

WlLLIAlfi- N, Bolfg'lH.

lin fnsenee ol` GEO. S. lone, WM. M. MoNnon. 

